"She's been filming from the start. Not enough drama from her for a full-time housewife role, but just enough for a friend of the show," a source told ET, before adding that this year's cast trip will be to South Africa.

Also expected for season seven is Camille Grammer, who has made appearances on RHOBH since she left as a full-time cast member in 2013. As for whether Grammer plans to come back full-time, she recently told ET to "talk to the higher ups."

"I don't know. We'll see, we'll see," she said in July on whether she'll make a comeback. "You gotta talk to [executive producer] Andy [Cohen] about that."

"Oh, I love being a part of it for what, it's gonna be six, seven seasons," Grammer gushed. "Oh my god, that's a long time! I call it my dysfunctional family, working with these girls -- but no, they're wonderful. I miss them when I'm not around them. They're fun."